def hasVowel(strArr, queries):
    vowels = {'a', 'e', 'i', 'o', 'u'}
 
    def is_vowel_string(s):
        return len(s) > 0 and s[0] in vowels and s[-1] in vowels
 
    if not strArr or not queries:
        return []
 
    vowel_flags = [is_vowel_string(s) for s in strArr]
    results = []
 
    for query in queries:
        try:
            l, r = map(int, query.split('-'))
            if l < 1 or r > len(strArr) or l > r:
                results.append(0)
            else:
                results.append(sum(vowel_flags[l-1:r]))
        except ValueError:
            results.append(0)
 
    return results

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YWFiLCBhLCBiY2QsIGF3ZSwgYmJiYmJ1CjItMywgNC01

aab, a, bcd, awe, bbbbbu
2-3, 4-5